Huawei LUNA2000-200KWH-2H1 Smart String ESS User manual

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Issue
Draft
Date
2022-10-30
HUAWEI TECHNOLOGIES CO., LTD.

Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
i
Copyright © Huawei Technologies Co., Ltd. 2022. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees or
representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
https://e.huawei.com

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
About This Document
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Copyright © Huawei Technologies Co., Ltd.
ii
About This Document
Purpose
This document describes the installation, electrical connections, commissioning, and
troubleshooting of LUNA2000-200KWH-2H1 Smart String Energy Storage System (also
referred to as ESS). Before installing and operating the ESS, ensure that you are familiar with
the features, functions, and safety precautions provided in this document.
Intended Audience
This document is intended for plant operating personnel and qualified electricians.
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates a hazard with a high level of risk which, if not avoided, will
result in death or serious injury.
Indicates a hazard with a medium level of risk which, if not avoided, could
result in death or serious injury.
Indicates a hazard with a low level of risk which, if not avoided, could
result in minor or moderate injury.
Indicates a potentially hazardous situation which, if not avoided, could
result in equipment damage, data loss, performance deterioration, or
unanticipated results.
NOTICE is used to address practices not related to personal injury.
Supplements the important information in the main text.
NOTE is used to address information not related to personal injury,
equipment damage, and environment deterioration.

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
About This Document
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
iii
Change History
Changes between document issues are cumulative. The latest document issue contains all the
changes made in earlier issues.
Issue Draft (2022-10-30)
This issue is used for first office application (FOA).

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Contents
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Contents
About This Document.................................................................................................................... ii
1 Safety Information........................................................................................................................1
1.1 General Safety ..............................................................................................................................................................1
1.2 Personnel Requirements ...............................................................................................................................................3
1.3 Storage and Installation Environment Requirements....................................................................................................4
1.4 Loading/Unloading and Transportation Requirements.................................................................................................7
1.5 Electrical Safety............................................................................................................................................................9
1.6 Mechanical Safety ......................................................................................................................................................10
1.7 Battery Safety .............................................................................................................................................................12
1.8 Maintenance and Replacement...................................................................................................................................16
1.9 Emergency Handling Plan ..........................................................................................................................................16
2 Product Description....................................................................................................................18
2.1 Model Description......................................................................................................................................................18
2.2 Functions and Features ...............................................................................................................................................18
2.3 Appearance.................................................................................................................................................................19
2.4 Components................................................................................................................................................................20
2.4.1 Power Supply and Distribution System ...................................................................................................................25
2.4.1.1 Battery pack..........................................................................................................................................................25
2.4.1.2 Smart Rack Controller ..........................................................................................................................................26
2.4.1.3 Embedded Power Subrack....................................................................................................................................29
2.4.1.4 Monitoring Module (SMU11B)............................................................................................................................29
2.4.1.5 PSU.......................................................................................................................................................................30
2.4.2 Monitoring System ..................................................................................................................................................32
2.4.2.1 CMU.....................................................................................................................................................................33
2.4.2.2 I/O Expansion Board ............................................................................................................................................34
2.4.3 Environment Control System...................................................................................................................................35
2.4.3.1 Air Conditioner.....................................................................................................................................................35
2.4.3.2 T/H sensor.............................................................................................................................................................36
2.4.3.3 Door Status Sensor ...............................................................................................................................................38
2.4.3.4 Electrode Water Sensor.........................................................................................................................................38
2.4.4 Fire Suppression System..........................................................................................................................................39
2.4.4.1 Rack-mounted Integrated Gas Fire Extinguisher..................................................................................................39

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2.4.4.2 T/H sensor.............................................................................................................................................................41
2.4.4.3 CO Sensor.............................................................................................................................................................42
2.4.4.4 Smoke Detector ....................................................................................................................................................43
2.4.5 Exhaust System........................................................................................................................................................45
2.4.5.1 Air Exhaust Module..............................................................................................................................................45
2.4.5.2 Air Exhaust Controller..........................................................................................................................................46
2.5 Working Principle.......................................................................................................................................................47
2.5.1 Circuit Diagram .......................................................................................................................................................47
2.5.2 Device Status ...........................................................................................................................................................47
2.6 Typical Application Scenario......................................................................................................................................48
2.7 Site Requirements.......................................................................................................................................................50
2.7.1 Site Selection Requirements....................................................................................................................................50
2.7.2 Forklift Requirements..............................................................................................................................................53
2.7.3 Hoisting requirements..............................................................................................................................................53
2.8 Installation ..................................................................................................................................................................54
2.8.1 Installation Preparations ..........................................................................................................................................54
2.8.1.1 Preparing Tools.....................................................................................................................................................54
2.8.1.2 Pre-installation Check...........................................................................................................................................56
2.8.2 Installing the ESS ....................................................................................................................................................56
2.8.3 Connecting a PE Cable for the ESS.........................................................................................................................62
2.8.3.1 Inside the Cabinet .................................................................................................................................................62
2.8.3.2 (Optional) Outside the Cabinet.............................................................................................................................63
2.8.4 Installing Components.............................................................................................................................................65
2.8.4.1 Installing the Rack-mounted Integrated Gas Fire Extinguisher ............................................................................65
2.8.4.2 Installing Battery Packs ........................................................................................................................................66
2.8.4.3 Installing the Smart Rack Controller ....................................................................................................................73
2.8.4.4 Installing the Smart PCS.......................................................................................................................................76
2.8.4.5 (Optional) Installing a Maintenance Socket..........................................................................................................78
2.8.4.6 (Optional) DDSU666-H........................................................................................................................................79
2.9 Installing Cables .........................................................................................................................................................79
2.9.1 Preparing Cables......................................................................................................................................................80
2.9.2 Installing Cables for the Rack-mounted Integrated Gas Fire Extinguisher..............................................................81
2.9.3 Installing Battery Pack Cables.................................................................................................................................82
2.9.4 Installing Rack Controller Cables............................................................................................................................85
2.9.5 Installing DC Power Cables.....................................................................................................................................88
2.9.6 Auxiliary an AC Power Cable (with External Grid Power Supply).........................................................................89
2.9.7 Installing a Single-phase AC Input Power Cable (without External Grid Power Supply).......................................90
2.9.8 Installing Communications Cables ..........................................................................................................................91
2.9.8.1 Installing a FE Communications Cable ................................................................................................................91
2.9.8.2 Installing Fiber Ring Network Communications Cables ......................................................................................92
2.9.9 (Optional) Installing DDSU666-H Cables...............................................................................................................94
2.9.10 (Optional) Installing Maintenance Socket Cables..................................................................................................95

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2.9.11 Sealing Cable Holes...............................................................................................................................................95
3 System Power-On........................................................................................................................96
3.1 Check Before Power-On.............................................................................................................................................96
3.1.1 General Check .........................................................................................................................................................96
3.1.2 ESS Installation Check ............................................................................................................................................97
3.1.3 Smart PCS Installation Check..................................................................................................................................98
3.1.4 SACU Installation Check.........................................................................................................................................98
3.2 Installing the PSU.......................................................................................................................................................99
3.3 Power-On Process.....................................................................................................................................................100
3.4 Powering on the SACU.............................................................................................................................................101
3.5 Powering On the Power Supply Loop of the AC Power Distribution Cabinet .........................................................102
3.6 Powering On the ESS ...............................................................................................................................................102
4 SmartLogger Web-based Deployment..................................................................................105
4.1 Preparations and WebUI Login.................................................................................................................................105
4.2 Checking the SmartLogger Software Version...........................................................................................................109
4.3 Upgrading the SmartLogger .....................................................................................................................................109
4.4 Setting Battery Modules ...........................................................................................................................................109
4.5 Deployment Wizard.................................................................................................................................................. 110
4.6 System Setup ............................................................................................................................................................ 113
4.7 View Alarm............................................................................................................................................................... 114
4.8 Setting Capacity Limit.............................................................................................................................................. 114
5 Closing the Cabinet Door........................................................................................................117
5.1 Delivering a Shutdown Command on the SmartLogger........................................................................................... 118
5.2 Power-Off Process.................................................................................................................................................... 118
5.3 Powering Off ESS Devices.......................................................................................................................................120
5.4 Powering Off the Power Supply Loop of the AC Power Distribution Cabinet.........................................................120
6 Alarm Reference........................................................................................................................121
7 Technical Specifications ..........................................................................................................149
A Crimping an OT or DT Terminal..........................................................................................151
B Repainting the Equipment .....................................................................................................155
C How Do I Recycle Used Batteries?........................................................................................160
D CMU Commissioning .............................................................................................................161
E Contact Information.................................................................................................................174
F Acronym......................................................................................................................................175

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
1 Safety Information
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1
1 Safety Information
1.1 General Safety
Statement
Before installing, operating, and maintaining the equipment, read this document and observe
all the safety instructions on the equipment and in this document.
The information provided under the NOTICE, CAUTION, WARNING, and DANGER
headings within this manual is not intended to cover all applicable safety policies, but instead
acts as a supplement to the comprehensive safety information provided. The Company will
not be liable for any consequences that may arise due to violations of general safety
requirements or safety standards concerning the design, production, and usage of the
equipment.
Ensure that the equipment is used in environments that meet its design specifications.
Otherwise, the equipment may become faulty, and any resulting malfunction, component
damage, personal injury, or property damage will not be covered under the warranty.
Follow local laws and regulations when installing, operating, or maintaining the equipment.
The safety instructions in this document are only supplements to local laws and regulations.
The Company will not be liable for any consequences in the following circumstances:
Installation or use in environments which are not specified in relevant international,
national, or local standards
Operation beyond the conditions specified in this document
Unauthorized modifications to the product or software code or removal of the product
Failure to follow the operation instructions or safety precautions on the product or in this
document
Equipment damage due to force majeure, such as earthquakes, fires, storms, floods, and
debris flows
Damage due to customer's failure to comply with transportation and installation
requirements
Storage conditions that do not meet the requirements specified in this document
Damage to the hardware or data of the equipment due to customer's negligence, incorrect
operation, or intentional damage

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System damage caused by operations of a third party or customer not in compliance with
this document, including those in system transportation and installation, and adjustment,
alteration, or removal of identification marks
Defects, malfunctions or damage caused by acts, events, negligence, or accidents beyond
the Company's reasonable control, including power outages or electrical failures, theft,
wars, riots, civil disturbances, terrorism, and intentional or malicious damage, etc.
General Requirements
Improper operations on high-voltage equipment may cause an electric shock or fire, which
could result in death, serious injury, or serious property damage. Comply with the following
precautions:
Observe the operation procedures and safety precautions provided in this manual and other
related documents.
Observe the safety precautions specified in the warning signs and labels on the equipment.
Use correct tools properly as required in this manual.
Observe the safety regulations of the plant, such as the operation and work ticket
mechanisms.
Only personnel who need to work on the equipment are allowed to access the equipment.
Install temporary warning signs or fences before working on the equipment.
The warning signs and protection labels on the equipment must be clear and prominent.
Do not alter, damage, or block them. Replace the signs and labels promptly if damaged.
Do not perform installation, cable connection, maintenance, or replacement when the
equipment is energized.
Do not use water to clean electrical components in the equipment.
Check the equipment for any damage, such as holes, dents, or other signs of internal
damage.
Check that the preinstalled cables are securely connected.
Ensure that the components in the equipment are not displaced. Do not alter the equipment
structure or installation procedures without permission.
Do not power on the equipment before it is installed or confirmed by professionals.
Wear appropriate protective clothing when powering on the system for the first time or
operating the main loop with power on.
Before handling a conductor surface or terminal, measure the contact point voltage, and
ensure that the ground cables of the equipment or components are connected reliably and
there is no risk of electric shock.
If any liquid is detected inside the equipment, immediately press the emergency stop
button and contact the onsite management personnel.
Do not open the cabinet door when the system is running.

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Do not touch the equipment while it is in use, as the enclosure is hot.
If there is a likelihood of personal injury or equipment damage during operations,
immediately stop, report the case to the supervisor, and take feasible protective measures.
Evacuate from the site immediately once the fire alarm horn/strobe is triggered.
During the operation and maintenance of the equipment, if you need to leave temporarily,
close and lock the cabinet doors.
During transportation, transfer, installation, cable connection, and maintenance, comply
with the national and local laws, regulations, and relevant standards.
The materials and tools prepared by the customer must comply with the national and local
laws, regulations, and relevant standards.
Obtain approval from the national and local electric utility company before connecting the
equipment to the grid.
Before opening container doors during the installation, operation, and maintenance of the
equipment, clean up any water, ice, snow, or other foreign objects on the top of the
container to prevent foreign objects from falling into the container.
Do not perform reverse engineering, decompilation, disassembling, disassembly, adaptation,
implantation, or other derivative operations on the equipment software. Do not study the internal
implementation of the equipment, obtain the source code of the equipment software, steal
intellectual property rights, or disclose any of the performance test results of the equipment software.
You are advised to prepare a camera to record the installation, operation, and maintenance of the
equipment.
1.2 Personnel Requirements
Only qualified personnel are allowed to operate the equipment, including transportation,
transfer, installation, cable connection, and maintenance. Wear personal protective
equipment (PPE) when operating the equipment.
Operators must pass the Company's training and have professional knowledge of energy
storage systems.
For specific qualification requirements, see local laws, regulations, and industry standards.

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Figure 1-1 Wearing PPE
Before installing, operating, or maintaining the equipment, remove conductive objects
such as watches, bracelets, bangles, rings, and necklaces to prevent electric shock.
During transportation, transfer, installation, cable connection, and maintenance, comply
with the national and local laws, regulations, and relevant standards.
Personnel must be familiar with the structure and working principles of the entire ESS,
and perform operations according to the manual.
1.3 Storage and Installation Environment Requirements
General Requirements
Proof that the product is stored according to the requirements must be kept properly, such as
temperature and humidity log data, storage environment photos, and inspection reports.
It is not recommended to store battery packs for extended periods. Long-term storage of lithium
batteries may cause capacity loss. Generally, the irreversible capacity loss is 3% to 10% after the
lithium batteries are stored at the recommended storage temperature range for 12 months.
The storage environment must be clean and dry. The product must be protected from dust,
moisture, rain, and water.
The air must not contain corrosive or flammable gases.
The ESS cannot be tilted or placed upside down.
If equipment except battery packs has been stored for more than two years, it must be
checked and tested by professionals before use.

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ESS (Excluding Battery Packs) Storage
Do not unpack the ESS if it will be stored for a long time.
The ESSs cannot be stacked.
The ground surface is flat (long-term or temporary storage).
The cabinet door is closed.
Storage temperature: –40°C to +60°C; humidity: 5%–95% RH
Battery Pack Storage and Maintenance Charge
1. Install battery packs in a dry, clean, and well-ventilated indoor environment that is free
from sources of strong infrared radiation, organic solvents, and corrosive gases. Do not
expose the battery packs to sunlight or water and keep them far away from sources of
ignition.
2. The total storage and transportation time of the battery packs cannot exceed eight months
(starting from delivery). If it exceeds eight months, charge the battery packs and
calibrate the SOC to at least 50%. Otherwise, the battery performance and service life
may be affected.
3. The warehouse keeper should collect battery pack storage information every month and
periodically report the battery pack inventory information to the planning department.
The battery packs that have been stored overdue should be recharged in a timely manner.
4. Battery packs should be delivered based on the "first in, first out" rule.
Conditions for Determining Overdue Storage of Battery Packs
Do not store batteries for extended periods. Comply with the following storage requirements.
Table 1-1 Lithium battery recharge interval
Required
Storage
Temperature
Actual
Storage
Temperature
(T)
Recharge
Interval
(Overdue
Storage
Period)
Remarks
0–40°C
0°C ≤ T ≤ 30°C
12 months
Within the recharge interval: Use
batteries as soon as possible.
Reaching the time for recharge:
Recharge the batteries.
30°C < T ≤
40°C
8 months
1. If batteries have been stored overdue, promptly report the event to the department leader.
2. Dispose of deformed, damaged, or leaking batteries directly irrespective of how long
they have been stored.
3. The storage duration starts from the latest charge time labeled on the battery package. If
a battery is qualified after recharge, update the latest charge time and the next charge
time (next charge time = latest charge time + recharge interval) on the label.
4. The maximum storage period is three years. Batteries can be recharged for three times at
maximum within the three years. For example, it can be recharged every 8 months or
every 12 months. Dispose of batteries if the maximum storage period and recharging
times are exceeded.

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5. Long-term storage of lithium batteries may cause capacity loss. Generally, the
irreversible capacity loss is 3% to 10% after the lithium batteries are stored at the
recommended storage temperature range for 12 months. Batteries may fail the discharge
test acceptance tests when their capacity after storage is less than 100% of the rated
capacity.
Storage Requirements for a Smart Rack Controller
If a Smart Rack Controller will not be used immediately, store it according to the following
requirements:
Do not remove the packaging. Check the packaging regularly (recommended: every
three months). If any rodent bites are found, replace the packaging immediately. If the
Smart Rack Controller is unpacked but will not be used immediately, put it back to the
original packaging with the desiccant, and seal with tape.
Storage temperature: –40°C to +70°C (–40°F to +158°F); humidity: 5%–95% RH
Stack Smart Rack Controllers with caution to prevent them from falling over, which may
result in personal injury or equipment damage.
Installation Environment
Comply with the following requirements during onsite installation:
When installing the ESS, comply with the fireproof distance or firewall requirements
specified in local standards, including but not limited to GB 51048-2014 Design Code
for Electrochemical Energy Storage Station and NFPA 855 Standard for the Installation
of Stationary Energy Storage Systems.
Do not expose the equipment to flammable or explosive gases or smoke. Do not perform
any operation on the equipment in such environments.
Do not install, use, or operate outdoor equipment and cables (including but not limited to
moving equipment, operating equipment and cables, inserting connectors to or removing
connectors from signal ports connected to outdoor facilities, working at heights, and
performing outdoor installation) in harsh weather conditions such as lightning, rain,
snow, and level 6 or stronger wind.
Take protection and isolation measures for the ESS, such as installing fences, walls, and
safety warning signs to prevent personal injury or property damage caused by
unauthorized access during operations.
To prevent fire due to high temperatures, ensure that vents and heat dissipation systems
are not obstructed while the equipment is running.
Install the equipment in an area far away from liquids. Do not install it under areas prone
to condensation, such as water pipes and air exhaust vents, or areas prone to water
leakage, such as air conditioner vents, ventilation vents, or feeder windows of the
equipment room. Ensure that no liquid enters the equipment to prevent faults or short
circuits.
Keep the equipment away from fire sources. Do not place any flammable or explosive
materials around the equipment.
If the equipment is installed in a place with dense vegetation, in addition to routine
weeding, harden the ground under the equipment to prevent weeds from growing.
The site must be a class C or higher environment but not a class D or E environment.

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Class C environment: Outdoor areas more than 500 m away from the sea. If a site is near a pollution
source, it must be 1500–3000 m away from heavy pollution sources, such as smelteries, coal mines,
and thermal power plants; 1000–2000 m away from medium pollution sources such as chemicals,
rubber, and galvanization; or 500–1000 m away from light pollution sources, such as packing houses,
tanneries, boiler rooms, slaughterhouses, landfill sites, and sewage treatment plants.
Class D environment: Sea environments or outdoor areas within 500 m away from the sea. If a site is
near a pollution source, it is within 1500 m away from heavy pollution sources such as smelteries,
coal mines, and thermal power plants, within 1000 m away from medium pollution sources such as
chemical, rubber, and galvanization industries, or within 500 m away from light pollution sources
such as packing houses, tanneries, boiler rooms, slaughterhouses, landfill sites, and sewage
treatment plants.
Class E environment: Special environments, such as underground or underwater environments.
Working at Heights
Wear PPE such as safety helmet, safety belt, and waist rope fastened to a solid structure.
Do not mount it on an insecure and moveable object or metal object with sharp edges.
Make sure that the hooks will not slide off.
Set a restricted area and put up prominent signs for working at heights. Only related
personnel can enter the area.
Do not pile up scaffolding, springboards, or other objects on the ground under the area
involving working at heights. Do not allow people to stay or pass under the area
involving working at heights.
Personnel involving working at heights are not allowed to throw objects from the height
to the ground, or vice versa. Objects should be transported by ropes, hanging baskets,
highline trolleys, or cranes.
Inspect the scaffolding, springboards, and workbenches used for working at heights in
advance to ensure that their structures are solid and not overloaded.
Stop working at heights in rain and other hazardous situations.After the preceding
conditions no longer exist, the safety director and relevant technical personnel must
check the involved equipment. Operators can begin working only after obtaining
approval.
Set guard rails and warning signs at the edges and openings of the area involving
working at heights to prevent falls.
Carry the operating devices and tools carefully to prevent them from falling off.
The site manager or safety supervisor must promptly point out any violations and the
involved personnel must correct their operations. Personnel cannot proceed with the
operations unless they comply with the requirements.
1.4 Loading/Unloading and Transportation Requirements
The ESS must be loaded and unloaded in compliance with local laws, regulations, and
industry standards. Reckless handling may cause short circuits or damage to battery packs in
the container, which may result in electrolyte leakage, breakage, explosions, or fires.

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The product passes the certifications of the UN38.3 (UN38.3: Section 38.3 of the sixth Revised
Edition of the Recommendations on the Transport of Dangerous Goods: Manual of Tests and
Criteria) and SN/T 0370.2-2009 (Part 2: Performance Test of the Rules for the Inspection of
Packaging for Exporting Dangerous Goods). This product belongs to Class 9 dangerous
goods.
Before transportation:
If battery packs collide, fall, generate smoke, or catch fires, perform operations
according to the emergency handling plan. Otherwise, do not start transportation.
Check the ESS and ensure that the container is intact, doors are closed and locked, and
no foreign object exists, and there is no smoke or burning smell. Otherwise, do not start
transportation.
Handle the ESS with care during loading, unloading, and transportation with moisture-proof measures in
place. The actual capacity may vary depending on the environment conditions, such as temperature,
transportation conditions, and storage conditions.
During transportation:
The ESS cannot be transported by rail or air.
Maritime transport must comply with the International Maritime Dangerous Goods
Code (IMDG Code).
Road transport must comply with the International Carriage of Dangerous Goods by
Road (ADR) or JT/T 617.
Comply with the requirements of the transportation regulatory authorities in the
countries of departure, route, and destination.
Comply with the international regulations on the transport of dangerous goods and the
requirements of the transport regulatory authorities of the respective countries.
Monitor the entire transportation process.
The load-bearing capacity of land transport vehicles must meet the following
requirements: The weight of a single ESS (excluding battery packs) is about 900 kg.
The speed limit for road transport is 80 km/h on flat roads and 60 km/h on rough roads.
In the case of any conflict, comply with local traffic laws and regulations.
Stacking is prohibited at ports and on ships.
During transportation, prevent the following situations:
Falling into water
Falling or mechanical impact
Being upside-down or tilted
If the preceding situation occurs, refer to the emergency handling plan.

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1.5 Electrical Safety
Cabling
Do not perform any improper operations, for example, dropping cables directly from a
vehicle.
Do not route cables through air intake or exhaust vents of the equipment.
Bind cables of the same type together. When routing cables of different types, ensure that
they are at least 30 mm away from each other.
When cable connection is completed or paused for a short period of time, seal the cable
holes immediately with the sealing mud to prevent small animals from entry.
When routing cables, reserve at least 30 mm clearance between the cables and
heat-generating components or areas. This prevents deterioration or damage to the cable
insulation layer.
Select cables that comply with local laws and regulations.
A fire suppression system is equipped. Do not press the extinguishant release button in
non-emergency situations.
The positions where cables are routed through pipes or holes must be protected to
prevent the cables from being damaged by sharp edges or burrs.
Ensure that the cables are properly connected and insulated, and meet specifications.
After cables are connected, secure them using cable supports and cable clips. Ensure that
the cables in the backfill area are in close contact with the ground to prevent cable
deformation or damage during backfilling.
When the temperature is low, violent impact or vibration may damage the plastic cable
sheathing. To ensure safety, comply with the following requirements:
−Cables can be laid or installed only when the temperature is higher than 0°C.
Handle cables with caution, especially at a low temperature.
−Cables stored at subzero temperatures must be stored at room temperature for at
least 24 hours before they are laid out.
Grounding Requirements
Do not damage the ground conductor.
Do not work on the equipment in the absence of a properly installed ground conductor.
For the equipment that needs to be grounded, install the ground cable first when
installing the equipment and remove the ground cable last when removing the
equipment.
The main grounding body of the equipment must be permanently connected to the
grounding grid. Before working on the equipment, check its electrical connections to
ensure that it is reliably grounded.
The grounding impedance of the equipment meets the requirements of GB 50054 and
local electrical standards.
AC and DC Power
Before installing or removing a power cable, turn off the power switch.
Before connecting a power cable, check that the label on the power cable is correct.
If the equipment has multiple inputs, disconnect all the inputs before operating the
equipment.

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Safety Requirements in Maintenance and Repair
1. Before connecting or removing cables, turn off the protection switch of the
corresponding loop.
2. Place a warning sign indicating that the switch must not be turned on at the position
where the switch resides.
3. Use an electroscope of a proper voltage level to check whether the equipment is
energized and ensure that the equipment is completely powered off.
4. If charged bodies are found nearby, block or wrap them with insulation plates or
insulation tapes.
5. Before performing maintenance and repair, securely connect the loop to be repaired to
the ground loop using a ground cable.
Before connecting a cable, check that the labels on it are correct.
If the equipment has multiple inputs, disconnect all the inputs before working on the
equipment.
6. After the maintenance or repair is complete, remove the ground cable between the loop
that has been repaired and the ground loop.
Electrostatic Discharge (ESD)
The static electricity generated by human bodies may damage the electrostatic-sensitive
components on boards, for example, the large-scale integrated (LSI) circuits.
Wear ESD gloves before touching a device or holding a board or PSU.
When holding a board or PSU, hold its edge without touching any components. Do not
touch the components with your bare hands.
Package removed boards or PSUs with ESD packaging materials before storing or
transporting them.
1.6 Mechanical Safety
Hoisting
The foundation where hoisting is performed must meet the load-bearing requirements.
Before hoisting objects, ensure that hoisting tools are firmly secured onto a fixed object
or wall that meets the load-bearing requirements.
Do not drag steel ropes and hoisting tools or bump the hoisted objects against hard
objects during hoisting.
During hoisting, do not stand or walk under the crane or the hoisted objects.
Install temporary warning signs or fences to isolate the hoisting area.

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Ensure that the angle between two hoisting ropes is no more than 90 degrees, as shown
in the following figure.
Using Ladders
Do not use a straight ladder.
Before using a ladder, check that it is intact and confirm its load bearing capacity. Do not
overload it.
Use wooden or fiberglass ladders when you need to perform live-line working at heights.
Platform ladders with protective rails are preferred. The ladder must be secured at the
four feet and held by a person.
When a step ladder is used, ensure that the pull ropes are secured and the ladder is held
firm by a person.
When climbing a ladder, take the following precautions to reduce risks and ensure
safety:

LUNA2000-200KWH-2H1 Smart String ESS
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−Keep your body steady.
−Do not climb higher than the fourth rung of the ladder from the top.
−Keep your center of gravity between the side rails, and do not overreach to the
sides.
Drilling Holes Nearby the Equipment
Drill holes at proper positions to ensure that no short circuit is caused.
Wear protective equipment such as safety goggles and protective gloves when drilling
holes.
When drilling holes, protect the equipment from shavings. After drilling, clean up any
shavings.
Moving Heavy Objects
When moving heavy objects, ensure that the number of operators meets the requirements
as shown in the following figure and make proper preparations.
Wear protective gloves and anti-smashing shoes when manually moving the equipment.
Do not scratch the equipment surface or damage components or cables when moving the
equipment.
When transporting the equipment using a forklift truck, ensure that the forks are properly
positioned so that the equipment does not topple. Before moving the equipment, secure it
to the forklift truck using ropes. When moving the equipment, assign dedicated
personnel to take care of it.
Move the equipment with caution to prevent collision or fall.
1.7 Battery Safety
Statement
The Company shall not be liable for any damage to battery packs caused by the following
reasons:
The battery packs are not charged as required during storage, resulting in capacity loss or
irreversible damage to the battery packs.
Mechanical damage, leakage, and breakage result from improper operations or incorrect
connection of battery packs.
After being installed and connected to the system, the battery packs are not powered on
in time, which causes damage to the battery packs due to overdischarge.
Battery packs are damaged because they are not accepted in time due to reasons
attributed to the customer.
Battery pack running parameters are incorrectly set.

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The customer or a third party uses battery packs beyond the scenarios specified by the
Company. For example, connect extra loads or use with other battery packs, including
but not limited to battery packs of other brands or battery packs of different rated
capacities.
Damage is caused to battery packs because the battery operating environment or external
power parameters do not meet environment requirements. For example, the actual
operating temperature of battery packs is too high or too low.
Battery packs are frequently overdischarged due to improper maintenance, capacity is
incorrectly expanded, or the battery packs have not been fully charged for a long time.
Battery packs are not maintained based on the operation guide, such as failure to check
battery terminals regularly.
Battery packs are stolen.
The warranty period of battery packs has expired.
Basic Requirements
Do not expose battery packs at high temperatures or around heat-generating sources, such
as sunlight, fire sources, transformers, and heaters. Overheating battery packs may cause
fires or explosions.
To prevent leakage, overheating, fires, or explosions, do not disassemble, alter, or damage
battery packs (for example, insert foreign objects into battery packs or immerse battery
packs in water or other liquids).
The fire hazard of the lithium-ion/sodium-ion battery energy storage system is high.
Consider the following safety risks before handling battery packs:
Battery electrolyte is flammable, toxic, and volatile.
Battery thermal runaway can generate flammable gases and harmful gases such as CO and
HF.
The accumulation of flammable gases generated from battery thermal runaway may cause
deflagration and explosion.
If a battery pack is accidentally exposed to water, do not use it. Move it to a safe place
for isolation and apply for spare parts in a timely manner.
Install battery packs in a dry, clean, and well-ventilated environment that is free from
sources of strong infrared radiation, organic solvents, and corrosive gases. Do not expose
the battery packs to direct sunlight or rain.
Battery packs must be stored in a separate room and inside the packaging. Do not store
battery packs together with other materials or in the open air. Do not stack battery packs
too high. The site must be equipped with qualified fire suppression facilities, such as
firefighting sands and fire extinguishers.
Check the fire safety of the ESS regularly, at least once a month.
Do not remove the battery pack packaging before use. Battery packs should be charged
by professionals in accordance with the requirements. Put battery packs back to their
packaging after charge during storage.
In an outdoor scenario, you are advised to power on battery packs within 24 hours after
unpacking. If the battery packs cannot be powered on in time, place them in a dry indoor
environment without corrosive gases.